1 files changed, 6 insertions, 0 deletions
diff --git a/stats.h b/stats.h
index fdedf27..5b9a313 100644
--- a/stats.h
+++ b/stats.h
@@ -75,6 +75,9 @@ static inline void minmax_to_be(struct minmax *mm)
 
 static inline double minmax_avg(struct minmax *mm)
 {
+	if (!mm->num)
+		return 0;
+
 	return (mm->sum / (double)mm->num);
 }
 
@@ -82,6 +85,9 @@ static inline double minmax_var(struct minmax *mm)
 {
 	double num = (double)mm->num;
 
+	if (!mm->num)
+		return 0;
+
 	return ((mm->sos - ((mm->sum * mm->sum) / num)) / num);
 }